If the engine cranks but does not start, it may be caused by a tripped inertia switch. Switch the key to "ON" and the fuel pump should be heard running for a second or two. Listen at the gas filler if necessary. The inertia switch is located on the firewall and can be tripped when the parking brake is set too hard and then released. The inertia switch should be reset, and will click when it is reset.Google+
Car Problem Reports
Mazda Navajo Crank but No Start Condition
Mazda Navajo Problem
Visitor, 1991 Mazda Navajo
Was running great when I parked it but will not start now. Seems like it's not getting any fuel. Engine turns over good but will not start.